Measuring device



Jan. 12, 1943. A. F. GROLL MEASURING DEVICE Filed Aug. 2, 1940 2 sheets-Shani INVENTOR. AL w/v f." 620/.L

' Jan. 1943- A. F. GROLL 2,307,777

mmsunme DEVICE Filed Au 2, 1940 2' Shets-Sheet 2 INVENTOR BY fl w/v FT $20M..- I

5% MMM V and particularly thermore, in feeding sheets, necessary that the length cated above loral-s minted out in the draw and the following This invention relates the ieeddns oishe ts of steel or the like to an operating I of sheet red is controlled and measured.

Sheet feeding devices should be as sccurste asis possible to make them in order that the length '0! sheet fed This is especially true where large numwi's of sheets are led and where it is the amount of scrap down to e minimum. Forof stock ied be main-- tained within close limits figure in order that the drawing or op erstion may be of uniform accurscy in the cm of each part made. Devices oi the nature indicre normally used in feeding strip widths andlensths to s forming machine, such as c drawing press. In many cm the strip or sheet is fed from a coil and eprecis tel-mined length oi the coil for each cycle of operation.

stock of v sheet. Among other disadvantages with such devices the surface characteristics or the sheet and to a device by which the lensiis fed to the machine;-

Devices 01' this character hove heretofore been built to directly operate an indimting memhsr throughmotion obtained from the trsveiinnmay be closely controllw.

desired to seep assteel,todiesitis to it x'i'rcdetermined '2, issc, ser n no. scents (in. stein) Fig. 2 is n eesaw through Fig. Lns indicated by the lines 3-2 thereon; V

m. 8 is s section'through Fig. 2 ss'indicctedby the m 8-8 thereon;

Fig. 4 is an enlarged section through Fig. 3 as indicated by the lines M thereon; and

P18. 5 is a. detail of the clutch embodied in the mechanism Reierrius now to Fig.1, the invention is used with e conventions! feeding ing a pair of pinch feeding series of straightening rolls forming an operative port mechanism employrolis i8 and ii and s it and it. A roll it of the indicating device as hereafter described, is remlientiy urged any roller engaging the same occasioned some s pp e with a consequent variation in move inent transmitted from the moving sheet to on crate the indicator.

- The general object of the present invention hes to provide an indicating (1cm which is driven by a power means vhwwrf ofthc moving sheet. In the present invention the travel oi the sheet is employed to cause the smoimt the indicator may be moved by its independent ectuafter described, is psrticliy carried by the slwvc i sting means. In other words, the chest mve- To the accomplishment oi the foregoing and related ends, said invention, then, con msts 0d the means hereinafter fully described and Whenclaims; the 1,11; 111: description semns forth in detail certain mechanism can M ni 1 the invention, such disclosed mcsm constituting, however. but one of various mechanical forms in which the principle of the invention may be In said snnexed drawings; V

Fig. 1 is a schematic view of my improved mill" cator device mounted in connection with sheet ieeding rolls;

cycle of the device is prices on slliitthe ainst a backing roll it.

The lshsth of stock'ied during each operative registered and controlled by an indicator member it including a graduated dial 38. This dial, sis shown in Fig. 1, is calinrcted in inches end by registration of the number oi inches desired to be fed, with n zero point.

indicated by an srrow ii, there is maintained an scour-etc remind of the sheet length. The indicetor member is rotatably mounted on s sleeve it, which sleeve is provided with a pinion gear is. The sleeve is Joumslled in tall hearinss'rcand is capped at '28 to thereby maintain the bear inns and the indicator member against a. shoulder of the pinion 2d.

.itn over-runnin clutch, functioning as herein- 22. This clutch, as best shown in Fig. 5. coin inner-portion 8d intwrnl with the sleeve 22 cnd an outer portion s2 mounted for rotation with respect to the inner portion. To control the operation vim. each st iving of the clutch three rem 8d are proa'rolier it spring urged as at so into the wedge formed between the recess and the inner face of the outer clutch portion 3%. The function of this clutch will be hereinafter.

- To rotate indicator mcmwr it piston and cylinder arrangement, sided. This ccmprim the case :82 of he s Minder 60 formed in indicating device. The cylfinder is capped at 63 end siidinsly receives a pisn cssnre may be admitted to the cylinder dd piston end, the indicstor from the left to the right (He. 3) the indicator cs travels through as mine portion of this cycle as shown in Fig. 3, is prothrough connections 68 and $8 to through the rack, rotate mm. Whenthenistonismoved thro ah cycle and thereby control the length of sheetied,

being led. a driving connection between said roll member and said indicator member rate "or travei'ot aaid indicator by its 1" 4. InameasurimdevioetorsheetmateriaL-an; indicator member adapted to move mail a. q e.voiejand the or sheet icd, means toadiust the travei'oi indicator;

d M peiiiient oi tbeleedinx'od a sheetto drive said 1 indicatorcomprisinsapiaton and cylinder mounted for movement reiative ..to byfluidpreesurearackandgearoonnection'be-; tween said piston and said indicatorimember to drive the latter upon actuation ot-the iormer, .a'i-go roiimembermountedtobeenzaledand'driven-z. v f byasbeetbeinztedmdrivinzoonnectimbetween ;.;-;element of. mid driv m: to thumb! raokiopermittbesa'metodriresaid,

be: by its means. 5.- In' a measuring device for indicator member adopted to move a means-independent of the ieedin: of'a sheet to drive said indicator a piston and'cyl- 'inder mounted for -n rovement 'reiative iao each i ,8 mealnstodriveeaidmokandiotatesaidlearto' drive said indicator member, a roll member moimted to be engaged and driven by a sheet,

other. y nuidpre'esure a ttionbetweenaaidpletonandnidindicatormemto drive the of the iormerQmeanstooQntroHbeIQnIthoitr'aVeI oi i mm and wet amoimtjoi travel-a o! eaidindicator to accommodate mu var m lengths, a roiimembermorliniqd-fi'b med by-a sheet beina tedra' driving con- :nection beween'saidroii munberJand I fdi'cetor member inciudiman'ovenmnninioiuteh so mounted that the rate iii-rotation oi said roli member and said indicator-member in-' 'cludinzanover-runningciutchsomountedtbat the rate 0! rotation oiaaid rotatable controls the r-ate oi travel oi raid indicator-mem 7 release to permit 11;

I At; Fromm; i

lsiinme under exceesiv'e i i v w 4 d meemmeciimnniur; drivin' said flnidactuatemeansior laidreckga the-em! oisaidraok. mantra-m" mfable member'wntrois'tbente ofli'awlf iil idiiiee dicator member by its a:

member rotatable a Ina m: io'dtivblnid'dm 

